"This is why it is so important that we maintain a diverse blood supply from blood donors of all backgrounds," she said. "Blood will be available for all patients when they need it, including ...

Having blood in your urine (hematuria) does not always mean you have an underlying abnormality. It may simply be the result of heavy exercise or a side effect of a drug that needs to be changed.

A blood spot in the white of your eye, known as a subconjunctival hemorrhage, is caused by the bursting of tiny blood vessels beneath the clear surface of the eye. It is typically a harmless condition ...

New research shows how the Eurasian common shrew (Sorex araneus) changes its brain and bodily size throughout the year. The study, published online in eLife, reveals how changes in gene expression ...